RBG-30904, Semiannual Radioactive Effluent Release Rept Addendum for Jul-Dec 1988
| ML20247C445 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 12/31/1988 |
| From: | Cargill E, Fantacci C GULF STATES UTILITIES CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| RBG-30904, NUDOCS 8905240472 | |
| Download: ML20247C445 (5) | |
Text
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RIVER BEND STATICN - UNIT I SIMIAINUAL RADIOACTIVE l
EMEMf IEEASE IEPORP ADDDUM
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REPORT PERIOD: JULY 1, 1988 THROUGH DECEMBER 31, 1988
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27!8 3 PREPARED BY:
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- r-C. LT Mantacci, Radiological Engineering Sdpervicor APPROVFD BY:
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E. M. Cargill, }#irectdr; Radiological' Programs h
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SDfIA!MIAL RADIOACTIVE EFFIDENT RELDEE RENRP ADDENDUM FACILITY:
River Bend Station - Unit I LICENSEE:
Gulf States Utilities Cmpany RLTORT PERIOD:
July 1, 1988 through December 31, 1988 This addendum is subnitted under River Bend Station (RBS) License Number NPF-47 and provides information that was not available when the Quarter 3/4 1988 RBS Semiannual Radioactive Effluent Release Report was being empiled.
Specifically, this addendum provides an update for the follwing:
1.
Tables 3,
4 and 5 Gaseous Effluents, Sr-89, Sr-90 Cmposite Results, pages 15,18 and 21.
2.
Table 6, Liquid Effluents, Sr-89, Sr-90 and Fe-55 Cmposite Results, pages 25 and 26.
Fourth quarter gaseous doses were calculated using 3rd quarter cmposite data for Sr-89 and Sr-90.
Cmposite results for the 4th quarter shwed a Sr-89 concentration less than that for 3rd quarter and a Sr-90 concentration belw the minimum detectable activity (MDA). Third i
quarter Sr-90 concentration was also < MDA.
Therefore, doses calculated for 4th quarter are more conservative and will not be recalculated.
j Doses due to liquid effluents were recalculated using l
4th quarter e mposite data (a positive analysis for Fe-55 was reported). The recalculation did not produce significant changes in either the population or maximum individual doses (Tables 10 and 12, pages 33 anl 37).
It should be noted that an entry of "0.00E+00" Ci in the follwing tables does not represent the absence of a radionuclides; but rather it indicates that the concentration of a particular radionuclides was bel w the Imer Limit of Detection (LLD).
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TABLE 3 ADDENDUM Effluent and Waste Ulaposal Semi-Imnual Report 1988 Year Gaseous Effluents - Sutunation of All Releases 3/4 Quarters
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l Est. Total j l
_j Unit lOuarter 3l Quarter 4 l Error, %
l C.
Particulate l 1.
Particulate with half-l i
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l lives of >8 days Ci l
(1) 2.72E-04 1.86E+0*
l l 2.
Average release rate l
l for period uCi/sec (1) l 3.46E-05 l
l 3.
Percent of technical i
l specification limit (1) l 6.57E-01 l
4.
Gross alpha j
l radioactivity i
Ci l
(1) l (1) l (1) - Previously Reported
t TABLE 4 ALDENDUM Effluent and Waste Disposal Semiannual Report 1,988 Year Gaseous Effluents - Conditionally Elevated Releases 3/4 Quarters Continuous Mode Batch Mcde I
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l Nuclides Released j Unit l
Quarter 3 l
Quarter 4 Quarter 3 l Quarter 4 3.
Parti.culates I
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Strontium-89 Ci (1) 3.96E-06 N/A N/A Strontium-90 l
Ci (1) l
- 0. 00E+00 (2)
N/A l
N/A I
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Total for Period l
Ci j
(1) l 2.71E-04 l
N/A l
N/A (1) - Previously Reported (2)
Quarterly ccruposite particulate filter analysis inddcates a Mininun Detectable Activity (MDA) concentration of <3.0 E-16 u i/cc for the Main Plant Exhaust Duct. This value is less than o
-11 the Lower Limit of Detection (LLD,4 of 1 x 10 Ci/ml as specified in table 4.11.2.1.2-1 of RBS Technical Specifications.
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GULF STATES UTELITIES COMPANY RIVE A BEND STATION POST OFFICE BOX 220 ST. FRANCISVILLE. LOUISIANA 70775 AREA CODt 604 035 6094 346 8651 May 17, 1989 RBG-30904 File Nos. G9.5, G9.25.1.5 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Gentlemen:
River Bend Station : Unit 1 Docket'No. 50-458 Enclosed is the Addendum. to the Semiannual Radioactive Effluent Release Report for the period of ' July 1 to December 31, 1988 submitted'
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to you previously-(ref. RBG-30187 dated February 28; 1989)-
This Addendum providos information which was not available at the time that the Semiannual Radioactive Effluent Release Report was being compiled.
This Addendum is being submitted in accordance ' with.
Technical Specification 6.9.1.8 of Appendix A to River Bend Station (RBS)
License Number NPF-47.
Sincerely,
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[u J.E. Booker Manager-River Bend Oversight River Bend Nuclear Group JEB/LAE/CLF/ C/ch Enclosure cc:
U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, TX-76011 NRC Resident Inspector P.O. Box 1051 St. Francisville, LA 70775